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Chemical Properties of Nobelium and Tantalum

Nobelium
Tantalum
Chemical Properties of Tantalum and Nobelium


Chemical Properties
Chemical Formula
No   
Ta   
Isotopes
  
  
Known Isotopes
13   
26
31   
8
Electronegativity
  
  
Pauling Electronegativity
1.30   
32
1.50   
27
Allred Rochow Electronegativity
1.20   
27
1.33   
22
Allen Electronegativity
Not Available   
1.34   
33
Electropositivity
  
  
Pauling Electropositivity
2.70   
22
2.50   
27
Ionization Energies
  
  
1st Energy Level
642.00 kJ/mol   
99+
761.00 kJ/mol   
18
2nd Energy Level
1,254.00 kJ/mol   
99+
1,500.00 kJ/mol   
40
3rd Energy Level
2,643.00 kJ/mol   
99+
Not Available   
4th Energy Level
3,956.00 kJ/mol   
39
Not Available   
Electrochemical Equivalent
4.83 g/amp-hr   
4
1.35 g/amp-hr   
99+
Electron Work Function
Not Available   
4.25 eV   
21
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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